FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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CIRC Pump Control Shorted Low (Active)

Test 1 - Test 3:




Test 4:






SYMPTOM
CIRC PUMP CONTROL SHORTED LOW (ACTIVE)

POSSIBLE CAUSES
- Circulation pump control circuit shorted to ground
- Circulation pump control circuit shorted to ground circuit
- Circulation pump control circuit shorted to sensor ground circuit
- Circulation pump
- Automatic temperature control (ATC)